The Encyclopedia Americana: A Library of Universal Knowledge, Količina 7Americana corporation, 1931 |
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Stran 145
... coal , Anthracite coal , Lykens , Pa .. 20 47.2 4.9 16.52 55.79 3.26 H2O C H O N S Ash 22.9 5.0 19.0 .61 .63 4.18 .94 34.1 .68 10.13 Connellsville , Pa . 0.89 82.48 4.50 5.61 1.45 0.73 82.89 4.53 .40 .64 elaborate Varieties of Coal ...
... coal , Anthracite coal , Lykens , Pa .. 20 47.2 4.9 16.52 55.79 3.26 H2O C H O N S Ash 22.9 5.0 19.0 .61 .63 4.18 .94 34.1 .68 10.13 Connellsville , Pa . 0.89 82.48 4.50 5.61 1.45 0.73 82.89 4.53 .40 .64 elaborate Varieties of Coal ...
Stran 146
... coal fields of China are vast and of great promise but are still practically undeveloped . Coal is abundant in India and Burma and the output is increas- ing fast , particularly from the mines in Ben- gal . The rather small coal field ...
... coal fields of China are vast and of great promise but are still practically undeveloped . Coal is abundant in India and Burma and the output is increas- ing fast , particularly from the mines in Ben- gal . The rather small coal field ...
Stran 151
... coal is shipped in seven or more sizes , the coal , as it comes from the mine , is passed through the breaker . A modern coal breaker built on the side of a hill at Mocanaqua , Pa . , will serve to ... coal COAL MINING MACHINERY 151.
... coal is shipped in seven or more sizes , the coal , as it comes from the mine , is passed through the breaker . A modern coal breaker built on the side of a hill at Mocanaqua , Pa . , will serve to ... coal COAL MINING MACHINERY 151.
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PALMER WALTER | 128 |
PICKERING WILLIAM | 285 |
SEE THOMAS J J Ph D | 361 |
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